alexandrzavalii

import React from "react";
import FirstChild from "./FirstChild";
import SecondChild from "./SecondChild";

class DumbosParent extends React.Component {
  state = { availableShoes: 6, lollipops: 9 };

  render() {
    const { availableShoes, lollipops } = this.state;
    return (

alexandrzavalii

// DumboParent.js
return (
      <Dumbo
        availableShoes={availableShoes}
        firstChild={clothing => <FirstChild clothing={clothing} lollipops={this.state.lollipops} />}
        secondChild={clothing => <SecondChild clothing={clothing} />}
      />
  )

// Dumbo.js

alexandrzavalii

Group Array of JavaScript Objects by Key or Property Value

Implementation

const groupBy = key => array =>
  array.reduce((objectsByKeyValue, obj) => {
    const value = obj[key];
    objectsByKeyValue[value] = (objectsByKeyValue[value] || []).concat(obj);
    return objectsByKeyValue;

alexandrzavalii

class AlphaNumericIdGenerator {
    constructor() {
        const alpha = Array.from({ length: 26 }, (_, i) => String.fromCharCode(i + 97))
        const numo = Array.from({ length: 10 }, (_, i) => i.toString())
        this.alphanumeric = numo.concat(alpha)
        this.alphaIndx = this.alphanumeric.reduce((obj, cur, i) => ({ ...obj, [cur]: i }), {});
    }

    between(after, before) {
        this._validate(after);